Exactly 1 year ago, I started work at Aggregift. Back then, I had just graduated from college and didn't really know what I was doing. Now, I still don't really know what I'm doing, but at least I have a year of experience behind me. Here are some of the lessons I've learned along the way, some tiny, and some significantly large.
How to business
I studied electrical engineering, so the closest I got to business was maybe in a corporate finance class. But after working on a 2-3 man team, one of them being the business manager, you sort of have to know these things. Things like our revenue model (we were making revenue from the day we launched. Not much, but it was more than 0), combined with our user growth rate, would lead to break-even in x months. Things like "we need to raise another round of funding because our burn rate will lead us to death in y months". Things like "we have potential acquisition interest from x company so we should also talk to y and z companies about an acquisition". And finally, things like "we're spending \$x on advertising every week and we're seeing y new users as a result; y isn't big enough but at least we get pictures of cute animals on our Facebook page". I'm not saying I could go and be a business manager now, but at least I know that these are things you have to worry about.
After working with Python and Django for a year, you learn a little bit.
- Use South. This is a given when using Django. And don't forget to migrate after deploying to production, goddamn.
- Fat models. Give them a sandwich. Every single function that you can reuse, put it in the model.
- Try/catch every external service call. Payment processors, email senders, Facebook api, Amazon api... everything will break eventually.
- Unicode support. Our site had a major bug that was caused by a guy with an á in his name. If possible, specify a default encoding for your database. If not, make sure every time the field is used it's encoded.
- Use management commands. Instead of writing random one off scripts, make them management commands so that you can just modify and reuse.
- Django admin is one of its best features. You can embed html in each row/column for easy visual inspection.
- Test, and re-test. And then test again. I broke user authentication when I modified one line and forgot to test with a new user. Oops.
- Use Django debug toolbar. This is one of the tools I used for profiling and benchmarking. There are other tools, such as snippetscream and apache bench.
- Email templates suck. If you weren't around in the early 2000s for table-based web design, then you'll have to relearn everything you thought you knew about HTML.
- Overcommunicate. I'm still bad at this, but the idea is you always want more communication and not less. For example, when a production error happens, you need to explain the root cause, the severity, the fix, and prevention in the future.
- You don't always have to write perfect code. If you're rushing to get a feature out tomorrow, just make it work. You can deal with refactoring later. Just don't forget to do it.
- Create a flowchart for complex processes. Many times I would get confused about when the user's friends list was loaded. Then I made some pretty flowcharts and it was k.